Illuminated telescope for instruments



Feb. 7, 1933. w J CAMERON 1,896,861

ILLUMINATED TELESCOPE FOR INSTRUMENTS Filed May 4, 1931 l/V/LL/AM d CAMERON.

Patented Feb. 7, 1933 UNITED STATES or cnrcAco, ILLINOIS ILLUMINATED TELESCOIEE non INSTR MENTS Application filed May 4,1931. Serial No. 534,891.

My present invention relates to surgical instruments and more particularly to instruments of the speculum type which are adapted for insertion into cavities for the purpose of inspecting interior areas and for operation thereon. Specifically my present structure relates to means for illuminating the;area' ering the lamp slightly to clear thefield for I In this connection I' 7 operation or treatment.

have also provided a telescope that is remov ably mounted on the handle, and other means are provided for adjusting the'telescope so as to focus it upon the area for the examination. a 1

One of the objects of my invention is to provide an instrument of the character above mentioned that is simple in construction and may be readily manipulated bythe operator when performing the-examination, operation ortreatment. The device is made of simple parts that may be readily disassembledfor the purpose of sterilization and may be entirely.

knocked-down for storage in a relatively small space.

The handle is coordinated withthe specu lum in such manner that instruments of different character may be readily mounted on the handle. The device is dependable and ellicient in operation, and the telescope and lamps are arranged in such manner thatthe former may be retracted and the latter may be moved out of alinement with the tool so that the surgeon may insert instruments for the purpose of operation or treatment;

I prefer to carry out my invention, and to thereby accomplish the numerous objects thereof, in substantially the manner hereine,

after fully described and as: more particu larly pointed out in the'claims. Reference will now be made to the accompanying'drawing that forms a part of this specification. In the.drawing:- M f Figure 1 is a vertical side elevation'of,,my invention showing the parts in position for use in making examinations.- I t Figure 2is ag'horizontal section online 2-2 of Figure 1 showing the handle, the lamp'and the telescope in top View. p Figure 3 is a view atright angle to Figure clear the field for operation or treatment. 1

ing the manner of movably mounting thetele scope. i a I The drawing is more or less schematic for the purpose of illustrating a typical or preferred form in which my invention may be made, and in this drawing similar reference characters are used to designate like parts wherever they appear throughout the difle'rs entviews. I Referring more particularly to Figure' 1, the structure there shown comprises a hollow PATENT oF IcEif WILLIAM CAMERON,

' 1 looking into the instrumentand with the 'telescope and lamp moved to positions, to

Figure 4 is a detail, partly in section, show- I tubular handle 5 havingelectric terminal connectors 6, at its lower end, and in its upper portion there is a longitudinally movable body consistingofa head 7 having therein a small electric socket 8 to receive a miniature electric lamp or bulb 9. As willbe seen in Figure 1, the lamp is of inverted L -shape or angle-shape and is provided with a lens 10 for increasing or magnifying the light rays emanating from it. I

Thehead 7 of the movable body is connected by a reduced neck portion 11 to a slide block 12,and the conductors from. the socket 8 pass through the head, the neck, and the block and extend down in the hollow handle 5 to the terminal connectors 6. The sideof the handle is provided with a longitudinal slot (not shown) and a sliding thumb plate '13 for exteriorly operating the movable body covers this slot and is connected by a pin or screw 14: with the block 12. With this con struction, the operator may move the slide 13 up or down thereby elevating or retracting thelamp or bulb '9 to the location desired. In its uppermost position the lamp or bulb 9 is substantially in alinement with the axis of the speculum so as to concentrate the rays of light towards and through the open end of the instrument, and in a lowered posltlon the lamp will be retracted away from the axis of theinstrument but will continue to illuminate the area under inspection while atv the same time permitting the surgeon. to. insert an instrument for operation ortre'atme'nt.

The instrument shown in the: drawing preferably an ear or nose speculum that con sists of a hollow tapered or ,cone-shaped per-,- tion 15 having an annular rib 16 at its base that acts as a stop, and'beyond the rib there is a concentric fiange or sleeve portion 17 of cylindrical formation. This speculum is removably mounted in a'holder that is removably carried on the upper portion of-the handle 5; This holder comprises a split band 18 the'ends of which are formed into ears 19 which are drawn togetherby a wedge block 20 that is operated by a short lever 21'.

' l he band is ofsuflicient dimensions to readily receive the flange or sleeve portion 17 of the speculum, and when the lever 21 is moved the band" will become constricted around thesleeve 17 and will firmly hold the speculum in position." Thelower portion of theband' flares away from the, speculum and is provided with a tubular socket portion 22, that is preferably open at both top and bottom and-is disposed laterally to the axis of the speculum and the clamping band as can be seen in Figure 1; This permits this socket portion 22 to be inserted over the lamp or bulb and the end ofthe handle so'as to be carried upon the upper end thereof.

The telescope is also removably carried upon the upper portion of the handle by.

. theinterior body-member and by placing the slotand' the outer slidelS lower on the handle. The outer portion of the bracket 23 is formed into a somewhat cylindrical boss 25 having a flatdisk-like flange 26 upon its upper end.

The-boss'is provided with a bore 27 that has a reduced upperportion 28to pro vi-de a'shoul dell" v l The viewing device comprises a'pair of telescopically arranged tubes 30, carrying the usual lenses for magnification, which tubes are adapted to be" moved relative to each other for the purpose of focusing the lenses upon the area illuminated by the lamp. The telescope is mounted on the bracket 23 so that it may be swung laterally, as shown in Figures 2 and 3, so that it will be out of the Way when the surgeon is using instruments 111 the speculum.

The manner of mounting the telescope or vlewing devlceconsists of. an. arm 31 having a flat, disk-likeenlargement 32 upon one end that is seated upon the top of the disk-like flange 26 of the embossment of the bracket, and on its oppositeend the arm is provided with a yoke of ring 33 that surrounds and is securedtoone o f the telescopic tubes 30, preferably the outer tube. The enlargement 32 of-the-armis provi'ded'upon onevedge with a bifurcatedkbearing boss 34 that projects radially from the sideof the enlargement'and are bored axially from-the passage of the threaded portion 35 of a rod 36. The un-. threaded end of the-rod is bent laterally asat 3T-and: secured tothe inner tube 'of-z'the tele scope through an elongated slot 38 made in theunderneathportion ofitheouter tube. A nut 39; havinga knurledz'or roughenedouter surface,:i's mounted on the threaded portion 35-;ofthe r od 36 andtis guided in the bearings formed :bythe ears ofthe bOSS'34. J Therot-ation of, the nutin one direction or the other will move the inner tube of the telescope axially orlongitudinally with respectto-the stationary telescope t-ube, thus focusing thelenses. It will-be seen the nutv is at a. convenientlocationso; that the operator,.when grasping the handleby the fingers, may ro-. tate thenut. by the thumb without. releasing the grip upon the handle. t I

In order to permit the telescope to be swung around to the. dotted-line position, (Figure2)-the arm31 isswingingly mounted upon the bracket 23. Thismounting isaccomplished' by providing a/small vertical spindle 40 .thatrprojects down from the center of the enlargement32ofthearm, which spine dle entersthe reduced'bore 28.01? the bracket and projects down-into the enlarged bore=27 near the bottom thereof. A coiled'ex pansion spring 41 surroundsthe lower, portion of. the spindlebetween the shoulderor abutment29 and .a washer or disk 42 that is secured upon the end of the spindlebymeans of'a screw or pin 43. The diameter of the'washer42 is such that: it snugly fits the enlarged bore 27 thereby. affording a lower.- bearing for the spindle to prevent lateral or sidewise movement. ofs the latter. r

A small semi-spheri'cal boss 44 is made on the lower face of the enlargement 32 of the arm and a 'correspon'dingly shaped depression ordent=45is made in adjacent uppe-rface of the flange 26 of the bracket. This boss and dent are in such location that when these parts are interfitted they will maintain the telescope in alinement with the axis of the speculum 15. When, however, it is desired to move the telescope out of range, so that the surgeon may insert instruments into the speculum, the telescope and arm are swung or moved laterally in a horizontal plane, thus causing the boss 44 to leave the dent and move upon the upper face of the flange 26, such movement being accommodated by the spring 41 which allows the spindle to move longitudinally in its bearing.

From the foregoing it will be seen the surgeon may clamp the desired speculum in the split band 18 and raise the lamp to the proper position to illuminate the interior of the cavity under inspection and then adjust the telescope to suit his sight for viewing said area therethrough. It will be understood that the lamp has its exterior surface, excepting the lenticular portion, blackened or opaque so that the light rays will be projected only in a direction into the speculum and not into the eyes of the operator. When the surgeon is ready to operate or treat the area in the cavity, the telescope may be swung with its arm into a lateral position as shown in Figures 2 and 3 and the lamp may be lowered slightly to be out of range of the instruments that are inserted in the speculum but at the same time illuminating the area upon which the operation or treatment is being performed.

The telescope is readily removable from the handle or support and the speculum and its mounting may also be readily removed for cleaning and sterilization.

The drawing and the within description are given for the purpose of clearness of understanding only and no unnecessary limitations are to be understood therefrom, but the appended claims are to be construed as broadly as permissible in view of the prior art.

What I claim is 1. A device of the kind described comprising a support, a tool extending laterally from an end thereof, a lamp coacting with said tool and support, a bracket carried by said sup- I port, an arm mounted on and extending from said bracket and capable of swinging move ment independent thereof, a telescope supported by said swinging arm and normally alined with the axis of said tool, spaced ears on said arm, a rod having a threaded portion that enters said ears and has its opposite end connected to said telescope, and a nut on the rod between said ears, whereby the rotation of said nut moves the rod longitudinally to adjust and focus said telescope.

2. A device of the kind described comprising a hollow handle, a removable tool extend-. ing laterally from an end thereof, a lamp at said handle end, means for moving the lamp into and out of axial alinement with said tool, a bracket having spring arms for remov- WILLIAM J. CAMERON. 

